NGP's "Near" Feature Allows You To Track What Games Are Hot In Your Area Via GPS.

An application built into the device called "Near" is an ongoing map allowing you to track where you are and where you have been. Near connects with the PSN to find out what games are popular in your current location, allowing you to buy games on the spot and jump into impromptu Hot Shots Golf tournaments if that's what everyone's playing.

It sounds like it will be a brilliant feature in Japan. We're not so sure how well it will pan out in the West.